<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title>
    <style type="text/css">
*{margin: 0;padding: 0;}
html,body{height: 100%}
div{background: black;width: 100%;height: 100%}

    </style> 
</head>
<body>
<div></div>
</body>
</html>